[Zn(H2O)(1,3-propanediylbis(2-iminomethylene-6-methoxyphenolato)(2-))Eu(NO3)3] | 1214254-66-6

• 英文名称: [Zn(H2O)(1,3-propanediylbis(2-iminomethylene-6-methoxyphenolato)(2-))Eu(NO3)3]
• 英文别名: [Zn(H2O)(o-vanillin-2H)Eu(O2NO)3]；[Zn(H2O)(1.3-propanediylbis(2-iminomethylene-6-methoxyphenolato))Eu(O2NO)3]
• CAS: 1214254-66-6
• 化学式: C₁₉H₂₂EuN₅O₁₄Zn
• 分子量: 761.759
• InChiKey: QNJKKZVVDGJXOG-MRTADBRDSA-L

反应信息

• 作为产物：
  描述：

  europium(III) nitrate hexahydrate 、 [Zn(H2O)(1.3-propanediylbis(2-iminomethylene-6-methoxyphenolato))] 以 乙腈 为溶剂， 生成 [Zn(H2O)(1,3-propanediylbis(2-iminomethylene-6-methoxyphenolato)(2-))Eu(NO3)3]
  参考文献：
  名称：

  Study of the Luminescent and Magnetic Properties of a Series of Heterodinuclear [Zn^IILn^III] Complexes

  摘要：

  Herein, we report the synthesis, structural investigation, and magnetic and photophysical properties of a series of 13 [Zn(II)Ln(III)] heterodinuclear complexes, which have been obtained employing a Schiff-base compartmental ligand derived from o-vanillin [H(2)valpn = 1,3-propanediylbis(2-iminomethylene-6-methoxy-phenol)]. The complexes have been synthesized starting from the [Zn(valpn)(H2O)] mononuclear compound and the corresponding lanthanide nitrates. The crystallographic investigation indicated two structural types: the first one, [Zn(H2O)(valpn)Ln(III)(O2NO)(3)], contains 10-coordinated Ln(III) ions, while in the second one, [Zn(ONO2)(valpn)Ln(III)(H2O)(O2NO)(2)] center dot 2H(2)O, the rare earth ions are nine-coordinated. The Zn-II ions always display a square-pyramidal geometry. The first structural type encompasses the larger Ln ions (4f(0)-4f(9)), while the second is found for the smaller ions (4f(8)-4f(11)). The dyskrosium derivative crystallizes in both forms. Luminescence studies for the heterodinuclear compounds containing Nd-III, Sm-III, Tb-III, Dy-III, and Yb-III revealed that the [Zn(valpn)(H2O)] moiety acts as an antenna. The magnetic properties for the paramagnetic [Zn(II)Ln(III)] complexes have been investigated.

  DOI：

  10.1021/ic200426w

文献信息

• Temperature Switch of LMCT Role: From Quenching to Sensitization of Europium Emission in a Zn^II−Eu^III Binuclear Complex
  作者：Traian D. Pasatoiu、Augustin M. Madalan、Michael U. Kumke、Carmen Tiseanu、Marius Andruh

  DOI：10.1021/ic902169s

  日期：2010.3.1

  europium was obtained by exciting into the maximum of a high-intensity, low-lying ligand-to-metal charge-transfer band (LMCT) located at ∼425 nm. The overall temperature-induced changes of the photophysical properties of europium were assigned to the relative location of the LMCT and 3ππ* ligand states to the europium excited levels. The results may explain the lack of the antenna effects reported

  报道了一种新的杂双核络合物[Zn（H 2 O）（valpn）Eu（NO 3）3 ]的合成，结构研究和光物理性质[H 2 valpn = 1,3-丙二基双（2-亚氨基亚甲基- 6-甲氧基苯酚）]。在没有在室温下铕发射的天线型致敏，以下激发到得到最强的金属中心的发射7 ˚F 0 - 5 d 2在535 nm处跃迁。相反，在80 K时，通过激发到〜425 nm处的高强度，低位配体-金属电荷转移带（LMCT）的最大值激发，获得了最强的emission发射。铕的光物理性质的整体温度引起的变化被分配到LMCT的相对位置和3个ππ*配位体状态的铕激发水平。结果可以解释缺乏报道的具有这种类型的配体的某些complex配合物的天线效应。